Kenichi Mizuma

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Image forming apparatus for fixing a toner image at a first speed o...
- Patent number 6,057,869
- Issue date May 2, 2000
- Ricoh Company, Ltd.
- Yasunori Kawaishi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Facsimile machine and facsimile communication system
- Patent number 6,005,673
- Issue date Dec 21, 1999
- Ricoh Company, Ltd.
- Kazuo Murai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Image forming apparatus having a separate black developer stored fo...
- Patent number 5,160,969
- Issue date Nov 3, 1992
- Ricoh Company, Ltd.
- Kenichi Mizuma
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus having a plurality of developing unit
- Patent number 5,132,733
- Issue date Jul 21, 1992
- Ricoh Company, Ltd.
- Yutaka Koizumi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Device for transporting sheet members using an alternating voltage
- Patent number 5,121,170
- Issue date Jun 9, 1992
- Ricoh Company, Ltd.
- Kazunori Bannai
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Color recording apparatus
- Patent number 4,933,727
- Issue date Jun 12, 1990
- Ricoh Company, Ltd.
- Kenichi Mizuma
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Duplex tray for duplex copying machine and the like
- Patent number 4,456,238
- Issue date Jun 26, 1984
- Ricoh Company, Ltd.
- Kenichi Mizuma
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Apparatus for aligning a paper sheet with a reference line
- Patent number 4,426,073
- Issue date Jan 17, 1984
- Ricoh Company, Ltd.
- Kenichi Mizuma
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Sheet paper stacking apparatus
- Patent number 4,379,549
- Issue date Apr 12, 1983
- Ricoh Company, Ltd.
- Kenichi Mizuma
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Sheet feed apparatus
- Patent number 4,372,547
- Issue date Feb 8, 1983
- Ricoh Company, Ltd.
- Nobuyuki Yanagawa
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Electrostatic copying machine comprising jam sensors
- Patent number 4,247,193
- Issue date Jan 27, 1981
- Ricoh Co., Ltd.
- Tamaki Kaneko
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Sheet feed apparatus
- Patent number 4,153,242
- Issue date May 8, 1979
- Ricoh Company, Ltd.
- Kenichi Mizuma
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL

Kenichi Mizuma

Person

Patents Grantslast 30 patents

Image forming apparatus for fixing a toner image at a first speed o...

Facsimile machine and facsimile communication system

Image forming apparatus having a separate black developer stored fo...

Image forming apparatus having a plurality of developing unit

Device for transporting sheet members using an alternating voltage

Color recording apparatus

Duplex tray for duplex copying machine and the like

Apparatus for aligning a paper sheet with a reference line

Sheet paper stacking apparatus

Sheet feed apparatus

Electrostatic copying machine comprising jam sensors

Sheet feed apparatus